elco ES08.5200 G/F-VT Betriebsanleitung Seite 8

Commissioning
Settings check
Combustion components
Secondary air
8
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Checking and setting combustion
head
On delivery the burner is set to natural
gases.
• Remove the safety screw D.
• Remove the movable pin E.
• Open the body of the burner.
• Disconnect the two ignition cables on
the transformer and the ionisation
probe cable.
• Unscrew the nut and the lateral screw
C which immobilises the gas supply
line.
• Remove the combustion components.
• Adjust the settings of the ignition
electrodes, the ionisation probe and
the diffusors according to the gas
available and the diagrams included.
• Check to ensure the presence and the
correct positioning of the sheet gasket
on the gas supply line.
• Reassemble.
• Check the following:
- the tightness of the screw and the
nut C,
- the leak tightness afterwards.
05/2009 - Art. Nr. 4200 1017 4400A
manuals search engine
Natural gases (low NOx)
Secondary Secondary Secondary Secondary
air (max) air (max) air (min) air (min)
KN T1 Y=453 Y=453 Y=478 Y=478
T2 KL Y=753 Y=753 Y=778 Y=778
Factory settings in bold type
Secondary air (Y dimension)
It is the air flow admitted between the
different diameters of the baffle and the
blast tube.
On delivery, dimension Y is set to 453
for KN and 753 for KL.
However depending on:
- firing quality
(shock, vibration, judder, delay),
- the cleanliness of the gas flow
combustion,
this value can be changed.
Setting
This is done when the burner is stopped
by disassembling the combustion
elements following the process
described in the previous chapter.
By increasing dimension Y, the
secondary air is reduced and the CO
increases and vice versa.
• Unscrew the two screws from the
baffle support.
• Slide the baffle support in the desired
direction.
• Measure the dimension Y; tighten the
two screws again.
• Adjust the diffusers according to the
type of head and the gas used as per
the plan opposite.
• Reassemble.
• Check to ensure the presence and the
correct positioning of the sheet gasket
on the gas supply line.
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